On the Effect of a Fixed Cost on an Inventory Model with Time – Dependent Parameters

An economic order quantity model with a time-dependent demand, fixed cost and holding is developed. It provides quantitative insight into serious practical problem where costs are incurred even when an not placed. The effect of on the inventory examined. Previous models incorporating demand rate assume that constant for entire cycle. considered as increasing function time spent in storage. Differential calculus used finding optimal solution. A numerical example to validate proposed model. Sensitivity analysis carried out analyze changes solution respect various parameters.